William mckay



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TO HIMSELF AND CHARLES E. BAYL-EY, OF SAME PLACE.

Letters Patent No. 85,234, dared- December 22, 1868.

IMZPRQ'IVEIEENT IN MAST-.ECOPE- The Schedule referred t'o iu 'these Letters Patent and making part .of the same.

To all persons to whom these presents may come:

Be it'known that I, WILLIAM MCKAY, ofNewburyport, in the county of Essex, and State of Massachusetts, have invented a new and useful Improvement in Mast-Hoops; and do hereby declare the sameto be fully described in the followingspecification, and represented in the accompanying drawings,'ot` which- Figure l is a top view,

4Figure 2, a horizontal section, and

Figure 3, a transverse section of a masthoop, made in accordance with my invention.

In such drawings, the hoop is shown as composed partly of Wood and partly of metal, the wooden portion beinr exhibited at a, and the metallic part at l).

The metallic part is round or cylindrical in section,

where it extends between the two ends of the wooden par-t, each being a section oi' an annulns.

The remaining portions orvflanks of the said metallic part are broader, andare let or sunk into grooves in the wood, and held to it by riveted claspsl c c;

' There is strung,l on that portion of the metallic part l, which is between the ends of the Wooden portion, a

series ofballs, ly d d, eachof Which is to turn loosely and easily on the metallic part b.

A mast-hoop so made is far superior to the common mast-hoop, as it will runfreely on the mast, and does not require any greasing ofthe mast.

In the said hoop the ends lof the wooden part opere ate as shoulders to the series of balls.

I am aware that it is not new to apply a series of rollers to a line xedto the crotch of a gaff, anchtherel fore do not claim such.

I am also aware of the patent of Charles Ellis, N o.

38,445, f0r an improved sail-bank, in which two sets of rollers are used, and are arranged one over the other, at the back of the hank'. The said'hankis closed by looking the ends on one another, as'ordinary hanks are closed. Y

, With my mast-hoop the wooden hoop or vportion a is closed bya different means, viz, by the metallic part'v b, which not only formsthe continuation of the hoopf but serves as an axle to support. the rollers, and for them to run om The ends ofthe part a also serve as shoulders for the set of rollers.

Now this construction of the hoop is different froml that of the sail-bank of Ellis, and renders the hoop far stronger'and better, 'as well as neaterin appearance.

Therefore I make no claim to zumeist-hoop ora sail-4 hank, as provided with friction-rollers but What I claim, as myinvention, is-

The improved arrangement, as described and represented, of the parts a, b, and the series offrictionrollers d d, the same being productive of an improved manufacture of mast-hoop providedwith friction-rollers.

WILLIAM MCKAY; Witnesses SVB. H. EDDY', F. P. HALE. 

